2p5b: Difference between revisions
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==The complex structure of JMJD2A and trimethylated H3K36 peptide== | |||
<StructureSection load='2p5b' size='340' side='right'caption='[[2p5b]], [[Resolution|resolution]] 1.99Å' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2p5b]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P5B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2P5B FirstGlance]. <br> | |||
| | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=OGA:N-OXALYLGLYCINE'>OGA</scene>, <scene name='pdbligand=OXY:OXYGEN+MOLECULE'>OXY</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
| | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2gp3|2gp3]], [[2gp5|2gp5]]</div></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">JMJD2A, JHDM3A, JMJD2, KIAA0677 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2p5b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p5b OCA], [https://pdbe.org/2p5b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2p5b RCSB], [https://www.ebi.ac.uk/pdbsum/2p5b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2p5b ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[https://www.uniprot.org/uniprot/KDM4A_HUMAN KDM4A_HUMAN]] Histone demethylase that specifically demethylates 'Lys-9' and 'Lys-36' residues of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-4', H3 'Lys-27' nor H4 'Lys-20'. Demethylates trimethylated H3 'Lys-9' and H3 'Lys-36' residue, while it has no activity on mono- and dimethylated residues. Demethylation of Lys residue generates formaldehyde and succinate. Participates in transcriptional repression of ASCL2 and E2F-responsive promoters via the recruitment of histone deacetylases and NCOR1, respectively.<ref>PMID:16024779</ref> <ref>PMID:16603238</ref> <ref>PMID:21694756</ref> Isoform 2: Crucial for muscle differentiation, promotes transcriptional activation of the Myog gene by directing the removal of repressive chromatin marks at its promoter. Lacks the N-terminal demethylase domain.<ref>PMID:16024779</ref> <ref>PMID:16603238</ref> <ref>PMID:21694756</ref> [[https://www.uniprot.org/uniprot/H3_URECA H3_URECA]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p5/2p5b_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2p5b ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The Jumonji C domain is a catalytic motif that mediates histone lysine demethylation. The Jumonji C-containing oxygenase JMJD2A specifically demethylates tri- and dimethylated lysine-9 and lysine-36 of histone 3 (H3K9/36 me3/2). Here we present structures of the JMJD2A catalytic core complexed with methylated H3K36 peptide substrates in the presence of Fe(II) and N-oxalylglycine. We found that the interaction between JMJD2A and peptides largely involves the main chains of the enzyme and the peptide. The peptide-binding specificity is primarily determined by the primary structure of the peptide, which explains the specificity of JMJD2A for methylated H3K9 and H3K36 instead of other methylated residues such as H3K27. The specificity for a particular methyl group, however, is affected by multiple factors, such as space and the electrostatic environment in the catalytic center of the enzyme. These results provide insights into the mechanisms and specificity of histone demethylation. | |||
Structural basis of the recognition of a methylated histone tail by JMJD2A.,Chen Z, Zang J, Kappler J, Hong X, Crawford F, Wang Q, Lan F, Jiang C, Whetstine J, Dai S, Hansen K, Shi Y, Zhang G Proc Natl Acad Sci U S A. 2007 Jun 26;104(26):10818-23. Epub 2007 Jun 13. PMID:17567753<ref>PMID:17567753</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2p5b" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Jumonji domain-containing protein|Jumonji domain-containing protein]] | |||
[[Category: | *[[Jumonji domain-containing protein 3D structures|Jumonji domain-containing protein 3D structures]] | ||
[[Category: | == References == | ||
[[Category: Chen, Z | <references/> | ||
[[Category: Hong, X | __TOC__ | ||
[[Category: Shi, Y | </StructureSection> | ||
[[Category: Zang, J | [[Category: Human]] | ||
[[Category: Zhang, G | [[Category: Large Structures]] | ||
[[Category: | [[Category: Chen, Z]] | ||
[[Category: | [[Category: Hong, X]] | ||
[[Category: | [[Category: Shi, Y]] | ||
[[Category: Zang, J]] | |||
[[Category: Zhang, G]] | |||
[[Category: Histone demethylase]] | |||
[[Category: Jmjc domain]] | |||
[[Category: Jmjd2a]] | |||
[[Category: Metal binding protein]] | |||